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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
丙酮酸羧化酶(pyruvate carboxylase,PC,EC 6.4.1.1)广泛存在于动物、霉菌和酵母的线粒体中,催化丙酮酸、ATP、CO₂和水生成草酰乙酸、ADP和Pi,是糖异生过程的第一个限速酶,在保证血糖的动态平衡方面起着重要的作用。 测定原理:PC催化丙酮酸、ATP、CO₂和水生成草酰乙酸、ADP和Pi,苹果酸脱氢酶进一步催化草酰乙酸和NADH生成苹果酸和NAD⁺,在340nm下测定NADH氧化速率,即可反映PC活性。
Pyruvate carboxylase (PC, EC 6.4.1.1) is widely present in the mitochondria of animals, molds, and yeasts. It catalyzes the conversion of pyruvate, ATP, CO₂, and water to oxaloacetate, ADP, and inorganic phosphate (Pi). As the first rate-limiting enzyme of gluconeogenesis, it plays a crucial role in maintaining the dynamic balance of blood glucose. Assay Principle: PC catalyzes the formation of oxaloacetate, ADP, and Pi from pyruvate, ATP, CO₂, and water. Malate dehydrogenase further catalyzes the conversion of oxaloacetate and NADH to malate and NAD⁺. The activity of PC is reflected by measuring the oxidation rate of NADH at 340 nm.